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Replacement Exhaust C4S
- Thread starter M241115
- Start date
not switchable but thats ok with me!
Price Reduced to £1400 must be a bargain
Hello all, I have a full DesignTec valvetronic system including, high flow headers and 200 cell cats for sale.
Complete with IPD plenum and 82mm throttle body.
The Kit was fitted in 2018 to MY2004 996.2 C4S cabrio for approx 600miles, Due change in circumstances the car had to go and I took the kit off. Dyno testing before and after indicated +18bhp valves closed 24open. Quiet for the neighbours, fabulous on the open road!
Cost new from Design911 was over £3000 for sale at £2000o ono. Now £1400
Some interesting observations from Dyno re air filter performance.
thanks for reading
GP.
mbaxterjones
New member
Thanks
Mark
Mine was fitted pre-purchase, but as you may have seen above, what I like about the Miltek is:
Looks. Looks fare better from the behind, than the PSE IMO, as two fatter pipes, than the orginal
Noise. Although it isn't switchable, it purrs on idle and isn't offensive at low revs. Sounds great when it gets going
I don't have much to compare it to, noise wise admittedly, but I'm happy
Mark
mbaxterjones
New member
Time to go shopping!
Richardburt
New member
Fitting was a PITA tbh. Made harder by the fact I didn’t want to cut the old silencer mounting tabs but eventually I gave in and cut 1 off, the spacer was seized solid to the mounting bolt to the extent it split the spacer slightly at one end Due to the bolt expanding as it rusted. None of the mounting bolts had enough hex left on them to use a spanner so I expected a hard time.
I spent around 6hrs including polishing the exhaust tips and refitting everything. With the new bolts fitted I reckon I could change it again in about 45 mins. For how long the back lights, bumper and side heat shields take to remove. Around 10 mins, I don’t understand why anyone would leave them on, even if the car is going on ramps.
If you are planning doing a diy job I’d recommend new bolts, tip clamps and some metal tube 12mm OD with 8mm ID before you start. A Dremel with a grinding tip would probably be helpful too. I fitted new stainless bolts 2x m8 140mm and 2x m8 70mm which I’d ordered in advance With stainless nuts and washers.
I fully understand why people get quotes for 4hrs labour. Especially if the exhaust has never been off.
Tizzy
New member
zagamuffin
Member
good advise here , anyone know of curent deals on miltek systems or good S/S S/h units maybe INC sports cats/manifolds
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